The `American Idol` judge - who already has two-year-old twins, Max and Emme, with husband Marc Anthony - says she would love a third child and while they are yet to conceive, the couple are having lots of "fun" trying.
She told America`s InTouch Weekly magazine: "Baby number three would be a blessing. We`re having fun trying!"
The 41-year-old beauty admitted having children has brought her and Marc - who married in 2004 - closer together and more determined than ever to make their relationship work.
She said: "My kids make Marc and I stronger than we have ever been. But there have been tough times where I did not know what the end looked like.
"Having kids made us both see that there`s a bigger picture. Yes, we still fight - but at the end of the day we know we have these amazing children who need us. So we promised not to go to bed angry."
The singer-and-actress recently said she would have children "a thousand more times" because she loves being a mother.
She revealed: "As soon as I had the babies, I thought to myself, `I want to do this a thousand more times.` I love this. This is life."